Electric nail filer



Nov.v27, 1945. H. HARRIS 2,389,665

' ELECTRIC NAIL FILER Filed Oct. 7, 1944 INVENTOR. g/nan. liar/'61sATTORNEY Patented Nov. 27, 1945 UNITED STATES PATENT OFFICE ELECTRICNAIL FILER Hyman Harris, New York, N. Y. Application October '7, 1944,Serial No. 557,666

4 Claims.

This invention relates to new and useful improvements in an electricnail filer.

More specifically, the invention proposes the construction of anelectric nail filer, characterized by a casing adapted to fit in thepalm of one hand and enclosing an electric motor having a flange-liketop enclosing a grinding wheel against which the finger nail is adaptedto be engaged to be filed by the wheel.

Still another object of the invention proposes providing the flange-liketop with a cylindrical opening within which a grinding wheel is disposedand which is extended from the front to the back of the flange formingopen sides through which areas of the grinding wheel extends to theexterior of the flange- Another object of the invention proposes theprovision of a shell-like cover mounted on the flange-like top portionand having cylindrical shaped skirt wall extending into and frictionallyengaging the wall of the cylindrical opening and having open sidesaligned with the open sides permitting a free extension of areas of thegrinding wheel.

Another object of this invention proposes forming the skirt wall with apair of diametrically opposed open sides normally aligned with the opensides of the cylindrical opening and a third open side normally hidwithin the flange-like top with a means for limiting turning of thecover to expose the third opened side and hide the pair of opposed sideswithin the flange, and cause only one side area of the grinding wheel tobe exposed for engaging the finger nail thereagainst.

It is a further object of this invention to construct an electric nailfiler which is simple and durable and which can be manufactured and soldat a reasonable cost.

For further comprehension of the invention, and oi. the objects andadvantages thereof, reference will be had to the following descriptionand accompanying drawing, and to the appended claims in which thevarious novel features of the invention are more particularly set forth.

In the accompanying drawing forming a, material part of this disclosure:

Fig. 1 is an elevational view of an electric nail filer, constructed inaccordance with this invention.

Fig. 2 is a plan view of Fig. 1.

Fig. 3 is an enlarged horizontal sectional view taken substantially onthe line 3-3 of Fig. 1.

Fig. 4 is a perspective view of the shell-like cover for the electricnail filer.

Fig. 5 is an enlarged horizontal sectional view, taken on the line 5-5of Fig. 1.

Fig. 6 is a perspective view of a cover member constructed according toanother form of the invention.

Fig. '7 is View similar to Fig. 1 but illustrating a modification of theinvention.

Fig. 8 is a view similar to Fig. '7 but illustrating a shifted positionof the parts.

Fig. 9 is a horizontal sectional view similar to Fig. 3 of themodification of the invention disclosed in Fig. 7.

Fig. 10 is a partial side elevational view of the modified form of thenail filer disclosed in Fig. 7.

Fig. 11 is a fragmentary elevational view, showing a buffer in place ofthe grinder wheel used in this device.

The electric nail filer, according to this invention, includes a casingIll which is adapted to fit into the palm of ones hand. This casing I0is formed with a flange-like top portion ll formed with a cylindricalopening [2 extended inwards from its top end and extending from thefront to the back of the flange forming open sides l3.

An electric motor I4 is mounted within the bottom portion of the casingill and has its driven shaft I5 extended coaxially into the cylindricalopening l2. An electrical cord l6 extends from the electric motor 14 atthe bottom end of the casing l0 and is provided with a plug H. The plugi1 is mounted on the free end of the electric cord [6 and is adapted tobe inserted into a conventionally housed outlet for supplying therequired current to operate the motor H. A grinder wheel I8 is disposedwithin the cylindrical opening I! and is removably attached to theextended shaft I5 to rotate thereof. This grinding wheel I8 has sideareas extended out of the open sides l3 of the flange-like top H to haveones finger nail (illustrated by the dot and dash lines [9 in Fig. 8)engaged thereagainst for filing the nail.

A shell-like cover 20 extends across the open top of the flange like topportion H and has a cylindrically shaped skirt wall 2!. Thiscylindricall; shaped skirt wall 2! is frictionally extended into andengages the walls of the cylin dricai opening l2 maintaining the cover20 in position. The skirt wall 2! is further provided with diametricallyopposed open sides 22 which are aligned with the open sides l3 of theoyiin drical flange-like top portion if so as not to interfere with theprojecting area of the grinding wheel 18.

A buiier wheel I8 may be interchanged with the grinding wheel 18whenever desired, as illustrated in Fig. 11.

The electric nail fller is used in the following manner:

The casing in is gripped in the palm of the hand and the plug [1 isengaged into the house outlet to supply the required current to rotatethe motor l4 and in turn rotates the grinding wheel l8. With the casingI still gripp d in the palm of one hand the finger nails of the otherhand are successively engaged against an exposed side of the grindingwheel l8 to file the nail.

After one hand has been completely filed the casing I0 is gripped in theother hand and used to file the nails of the hand first used to grip thecasing.

The motor shaft I5 is provided with a ratchet wheel [5 adapted to beengaged by a starting tooth l5 projecting inwardly from a startingmember l5. This member l5 is formed with a slot l5 which houses a springI5 and is engaged by a pivot pin [5 at one end and a knob 15 at theother end.

A spring H tends to press the tooth Li out of engagement from theratchet wheel IS. The shaft l5 may be rotated by pressing the knob l5toward the casing 10. r

In the modification shown in Fig. 6, the skirt wall N of the cover 20 isshown with only one open side 22.

In the modification of the invention disclosed in Figs. 7 to 10 theconstruction of the nail file is similar to that previously describedexcept that the skirt wall 2| of the cover 20 in addition to the opposedopen sides 22 which are normally aligned with open sides of thecylindrical top portion II is also formed with a third open side 23which is normally hid within the flange-like top H. Means is providedfor turning of the cover 20 to expose the third open side and hide thetwo open sides 22 within the flange II.

This means comprises the projection 24 extend ing from the skirt wall 22and which is engaged within an inverted U-shaped groove formed on theinside face of the cylindrical flange like top portion H. Normally thecover is in the position shown in Fig. 7 with its diametrically opposedopen sides 22 aligned with the open sides l3 with the flange I I. Inthis position it is possible to pull the cover outwards until theprojection 24 strikes the top of the groove 25. In this position thecover 20 may be rotated to expose the open side 23 and hide thediametrically opposed open sides 22. This shifted position isillustrated in Fig. 8. In this new position the cap 20 may again bepressed downwards within the flange like top portion H. In this latterposition only one side of the grinding wheel l8 will be exposed whilethe diametrically opposite side of the grinding wheel i8 is covered by adiametrically opposed side of a skirt wall 21 of the cover 20 In otherrespects this form of the invention is similar to that previously shownand ike reference numerals identify like parts in each of the severalviews.

While I have illustrated and described the preferred embodiments of myinvention, it is to be understood that I do not limit myself to theprecise constructions herein disclosed and the right is reserved to ailchanges and modifications coming within the scope of the invention asdefined in the appended claims.

Having thus described my invention, what I claim as new and desire tosecure by United States Letters Patent is:

1. A nail filer, comprising a casing adapted to fit into the palm ofones hand and having a flange-like top portion formed with a cylindricalopening extended inwards from its top end and extending from the frontto the back of said flange forming open sides, a driven shaft extendingcoaxially of said cylindrical opening, a grinding wheel mounted on saidshaft and located in said cylindrical opening and extending out of theopen sides thereof, and a shell-like I cover mounted on said flange-liketop portion and having a cylindrically shaped skirt wall extending intoand frictionally engaging the walls of said cylindrical opening andfurthermore having open sides through which said grinding wheel extends.

2. A nail fil r, comprising a casing adapted to fit into the palm ofone's hand and having a flange-like top portion formed with acylindrical opening extending inwards from its top end and extendingfrom the front to the back of said flange forming open sides, a drivenshaft extending coaxially of said cylindrical opening, a grinding wheelmounted on said shaft and located in said cylindrical opening andextending out of the open sides thereof, and a shell-like cover mountedon said flange-like top portion and having a cylindrically shaped skirtwall extending into and frictionally engaging the walls of saidcylindrical opening, said skirt wall having a pair of diametricallyopposed open sides normally aligned with the open sides of saidcylindrical opening and a third open side normally hid within saidflange-like top, and means for limiting turning of said cover, wherebyit may be turned to expose said third open side and hide said pair ofopen sides within said flange.

3. A nail filer, comprising a casing adapted to flt into the palm ofones hand and having a flange-like top portion formed with a cylindricalopening extending inwards from its top end and extending from the frontto the back of said flange forming open sides, a driven shaft extendingcoaxially of said cylindrical opening, a grinding wheel mounted on saidshaft and located in said cylindrical opening and extending out of theopen sides thereof, and a shell-like cover mounted on said flange-liketop portion and having a cylindrically shaped skirt wall extending intoand frictionally engaging the walls of said cylindrical opening, saidskirt wall having a pair of diametrically opposed open sides normallyaligned with the open sides of said cylindrical opening and athird openside normally hid within said flange-like top, and means for limitingturning of said cover, whereby it may be turned to expose said thirdopen side and hide said pair of open sides within said flange, saidmeans comprising a projection extending from said skirt wall andengaging an inverted U -shaped groove formed on one side of saidflange-like top portion.

4. A nail filer, comprising a casing adapted to flt into the palm ofones hand and having a flange-like top portion formed with a cylindricalopening extending inwards from its top end and extending from the frontto the back of said flange forming open sides, a driven shaft extendingcoaxially of said cylindrical opening, a grinding wheel mounted on saidshaft and located in said cylindrical opening and extending out of theopen sides thereof, and a shell-like cover mounted on said flange-liketop portion and having a cylindrically shaped skirt wall extending intoand irietionally engaging the walls of said cylindrical opening, saidskirt wall having a pair of diametrically opposed open sides normallyaligned with the open sides of said cy-' lindrical opening and a. thirdopen side normally hid within said flange-like top, and means forlimiting turning of said cover, whereby it may be turned to expose saidthird open side and hide said pair or open aides within said flange,said third open side being formed on one side of said skirt wall at apoint midway between said pair s of diametrically opposed open sides.

HYMAN

